Otherwise it is subtracted from the sale.

Subtract that and expenses from your $1100 rental income and you can see how terrible your investment is on this property. $1100/month in rental income on a $160K property, all dead equity, is a joke.

I typically subtract 3%, of the ARV.Realtor Fees: What is the commission you are willing to pay your listing agent (unless you are the listing agent) and the buyer's agent.

Then you subtract that rehab price from 70% value of those comps, to arrive at your MAXIMUM Allowable Offer (MAO).Eg.

Or are there other calculations/factors in play here, like difference afters setbacks are subtracted, how lenient the city planner is, etc.)?

It would take into consideration the cost to rebuild / replace the structure today, but then subtract the depreciation of your building and then add in the land value.An appraiser should be able to provide such an approach for you.

Subtract your closing costs and rehab costs and you will have a rough offer price.

On that amount borrowed from the bank I figure maybe 8% interest (not sure on current rates) so it would amount to $1,344,000 x .08 percent = $107,520/year.In conclusion subtracting $107,520 yearly payment from the $144,000 NOI would get$144,000 - $107,520 = $36,480 profit.which in turn on the $336,000 down payment would yield a ROI of $36,480/ $336000 = .01085 or about 10.8%.This is one of my first properties that I have analyzed but want to make sure that I am doing them in the correct way, so any input you guys could give me would be great!

Calculate your rehab and holding costs and subtract.  

Then just once a week pull a new list, and compare the two for any additions/subtractions.